Finding the Fourth Proportional to 9,909.52, 13,674.63 and 5,717.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,909.52 : 13,674.63 = 5,717.50 : x
2. Step 2: Convert to fraction form
   9,909.52/13,674.63 = 5,717.50/x
3. Step 3: Cross multiply
   9,909.52x = 13,674.63 × 5,717.50
4. Step 4: Simplify right side
   9,909.52x = 78,184,697.03
5. Step 5: Solve for x
   x = 78,184,697.03/9,909.52
6. Step 6: Final answer
   x = 7,889.86